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All Journal Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa Jurnal Ilmiah MITSU (Media Informasi Teknik Sipil Universitas Wiraraja) Proceedings ACES (Annual Civil Engineering Seminar) Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Jurnal Teknik RACIC : Rab Construction Research The Jurnal Arsip Rekayasa Sipil dan Perencanaan (Journal of Archive in Civil Engineering and Planning) Dinamisia: Jurnal Pengabdian Kepada Masyarakat SIKLUS: Jurnal Teknik Sipil Eksakta : Berkala Ilmiah Bidang MIPA Inersia : Jurnal Teknik Sipil JURNAL TEKNIK SIPIL UNAYA Mattawang: Jurnal Pengabdian Masyarakat Journal of Infrastructure and Civil Engineering SAINSTEK Fleksibel: Jurnal Pengabdian Kepada Masyarakat JURNAL KARYA ILMIAH MULTIDISIPLIN BATOBO: Jurnal Pengabdian Kepada Masyarakat BISMA: Bimbingan Swadaya Masyarakat
Fitridawati Soehardi, Fitridawati
Program Studi Teknik Sipil, Fakultas Teknik, Universitas Lancang Kuning, Riau, Indonesia
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Transportation Other

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Journal : Journal of Infrastructure and Civil Engineering

 1 
Pengaruh Waktu Perendaman Dengan penambahan Kapur Sebagai Bahan Stabilisasi Pada Tanah Lempung Terhadap Nilai CBR Soehardi, Fitridawati; Putri, Lusi Dwi
Journal of Infrastructure and Civil Engineering Vol. 4 No. 2 (2024)
Publisher : Program Studi Teknik Sipil Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/jice.v4i2.57

Abstract

Nilai daya dukung tanah dasar yang lebih dikenal dengan subgrade, mem punyai pengaruh pada perhitungan tebal perkerasan dalam suatu konstruksi jalan. Pengujian tanah lempung merah dengan bahan tambah kapur untuk memperoleh nilai CBR yang disyaratkan dalam konstruksi jalan raya tadi merupakan rekayasa geoteknik yang dapat dilakukan. Stabilisasi tanah kapur lebih cocok dengan waktu ikatan yang lebih lama, sehingga dapat menguntungkan bila terjadi penundaan pekerjaan yang agak lama setelah pencampuran dan tidak ada resiko berkurangnya kekuatan campuran oleh akibat pemadatan. Melalui uji CBR laboratorium terhadap bahan tanah lempung merah yang distabilisasi dengan kapur dengan berbagai variasi waktu perendaman terhadap benda uji dapat diperoleh nilai CBR yang disyaratkan. Penelitian bertujuan untuk menentukan persentase yang efektif dalam penambahan kapur dari segi nilai CBR (California Bearing Ratio) terhadap lama waktu perendaman. Hasil penelitian menunjukkan nilai CBR benda uji yang tidak direndam maupun tidak direndam cendrung mengalami peningkatan seiring dengan penambahan kapur. Namun nilai CBR tanah yang menggunakan perendaman cendrung mengalami penurunan seiring dengan lamanya waktu perendaman. Nilai CBR tertinggi diperoleh pada variasi penambahan kapur 15 % dengan lama waktu pemeraman 4 Hari yaitu 26,05% dan nilai CBR terendah terdapat pada penambahan 5 % dengan lama waktu Prendaman 14 Hari yaitu 5,35 %.
Pengaruh Waktu Perendaman Dengan penambahan Kapur Sebagai Bahan Stabilisasi Pada Tanah Lempung Terhadap Nilai CBR Soehardi, Fitridawati; Putri, Lusi Dwi
Journal of Infrastructure and Civil Engineering Vol. 4 No. 2 (2024)
Publisher : Program Studi Teknik Sipil Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/jice.v4i2.57

Abstract

Nilai daya dukung tanah dasar yang lebih dikenal dengan subgrade, mem punyai pengaruh pada perhitungan tebal perkerasan dalam suatu konstruksi jalan. Pengujian tanah lempung merah dengan bahan tambah kapur untuk memperoleh nilai CBR yang disyaratkan dalam konstruksi jalan raya tadi merupakan rekayasa geoteknik yang dapat dilakukan. Stabilisasi tanah kapur lebih cocok dengan waktu ikatan yang lebih lama, sehingga dapat menguntungkan bila terjadi penundaan pekerjaan yang agak lama setelah pencampuran dan tidak ada resiko berkurangnya kekuatan campuran oleh akibat pemadatan. Melalui uji CBR laboratorium terhadap bahan tanah lempung merah yang distabilisasi dengan kapur dengan berbagai variasi waktu perendaman terhadap benda uji dapat diperoleh nilai CBR yang disyaratkan. Penelitian bertujuan untuk menentukan persentase yang efektif dalam penambahan kapur dari segi nilai CBR (California Bearing Ratio) terhadap lama waktu perendaman. Hasil penelitian menunjukkan nilai CBR benda uji yang tidak direndam maupun tidak direndam cendrung mengalami peningkatan seiring dengan penambahan kapur. Namun nilai CBR tanah yang menggunakan perendaman cendrung mengalami penurunan seiring dengan lamanya waktu perendaman. Nilai CBR tertinggi diperoleh pada variasi penambahan kapur 15 % dengan lama waktu pemeraman 4 Hari yaitu 26,05% dan nilai CBR terendah terdapat pada penambahan 5 % dengan lama waktu Prendaman 14 Hari yaitu 5,35 %.
Construction Actors' Perception and Readiness for Environmentally Friendly Soil Improvement in Green Infrastructure Practices Soehardi, Fitridawati; Rahmat, Hendri; Idris, Marlaily
Journal of Infrastructure and Civil Engineering Vol. 5 No. 3 (2025)
Publisher : Program Studi Teknik Sipil Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/jice.v5i3.125

Abstract

This study aims to assess the perceptions and readiness of construction practitioners regarding the implementation of environmentally friendly soil improvement methods in green infrastructure practices. The study used a descriptive quantitative approach, using a 20-item questionnaire involving 51 respondents active in construction projects. The validity and reliability of the instrument were tested using Pearson correlation and Cronbach's Alpha coefficients, with the majority of items being declared valid (r-value> 0.278) and very high reliability (? = 0.940). The descriptive analysis showed that respondents' understanding of the basic principles of environmentally friendly soil improvement methods was high (mean = 4.08), reflecting a growing awareness of sustainability concepts in geotechnical engineering. However, respondents also identified several implementation barriers, both technical, such as limited equipment and a lack of operational standards, and non-technical, such as budget constraints, resistance to innovation, and minimal local stakeholder participation. Policy support was also deemed insufficiently concrete to encourage the widespread adoption of these methods. The correlation analysis demonstrated a positive relationship between understanding and awareness of implementation challenges. These findings underscore the importance of a collaborative approach and stronger regulatory support to accelerate the adoption of green technologies in the construction sector. The study recommends strengthening technical training, enhancing the capacity of project actors, and developing sustainability-based incentive policies.
Analysis of Heavy Equipment Productivity in Normalization and Embankment Work in Sei Berapit Indragiri Hilir Regency Saputra, Doni Yudia; Zainuri, Zainuri; Soehardi, Fitridawati
Journal of Infrastructure and Civil Engineering Vol. 6 No. 1 (2026)
Publisher : Program Studi Teknik Sipil Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/jice.v6i1.164

Abstract

The 30% delay in construction progress on the Normalization and Embankment Construction project in Sei Berapit, Indragiri Hilir Regency, where as of the last week of November 2025 only 70% of the work had been completed, indicates that heavy equipment productivity has not met the planned target. This study aims to analyze the productivity of amphibious excavators and determine the effective number of equipment alternatives to accelerate project completion. The method used is a quantitative method with a case study approach, with productivity analysis based on work cycle time data, equipment efficiency, and actual production capacity from field observations. The analysis results show that in Alternative I, namely the use of two amphibious excavators, daily production capacity increased significantly to around 980,627 m³/day, so that the remaining work volume of 5,760.416 m³ could theoretically be completed in around 6 working days. This increase in productivity not only has an impact on accelerating the duration of implementation but also provides better operational flexibility in anticipating field disruptions. Compared to other equipment addition alternatives, Alternative I is considered the most rational because it reduces unproductive time, minimizes the risk of delays due to equipment damage or other operational disruptions, and remains within an acceptable daily operational cost level of IDR. 27,363,200. This finding confirms that productivity control and determining the number of amphibious excavators play a crucial role in time and cost management. Therefore, heavy equipment productivity evaluation should be conducted from the project planning stage, especially for excavation work in flooded terrain, to ensure optimal achievement of implementation targets.
Co-Authors Abdul Hakam Afrialdi, Afrialdi Alfian Saleh, Alfian Anggraini, Muthia Ardiansyah, Rony Arhan Wanim, Arhan Armaisastrawati Armaisastrawati atmam atmam, atmam Dewi, Sri Hartati Dhanil Ramadhan Dinata, Marta Dwi Putri, Lusi Dwi Vita Lestari Soehardi Elizar Elizar, Elizar Erdin Khalid Zulfi Erdin Fadrizal Lubis Hendri Rahmat, Hendri Ikhlas Zai Juliper Marpaung Lidya Birahmatika Lubis, Sautma Forman Pangihutan Lusi Dwi Putri, Lusi Dwi M. Yusuf Septino Mahadi Kurniawan Maijuanda, Shinta Marlaily Idris Marta Dinata Mas Mera Melyan, Salsabila Muhaimin - MUHIBBAN, MUHIBBAN Panjaitan, Yohana Pinta Uli Putri*, Lusi Dwi Putri, Dinda Dwi Rahmadhany, Rezky Aulia Repi Repi Retno, Deddy Purnomo Risenal Nick Safdivah, Yohanda Saputra, Doni Yudia Sari, Yusra Aulia Sitompul, Dedy Srihandayani, Susy Sugeng Wiyono Thamrin, Rendy Toyip Setiawan Virgo Trisep Haris Virgo Trisep Haris, Virgo Trisep Winayati - Winayati winayati Zainuri Zainuri Zainuri Zainuri Zainuri, Zainuri